Finding the Fourth Proportional to 154,212.12, 231,318.42 and 43,404.12

Step by Step Solution

1. Step 1: Write the proportion equation
   154,212.12 : 231,318.42 = 43,404.12 : x
2. Step 2: Convert to fraction form
   154,212.12/231,318.42 = 43,404.12/x
3. Step 3: Cross multiply
   154,212.12x = 231,318.42 × 43,404.12
4. Step 4: Simplify right side
   154,212.12x = 10,040,172,459.89
5. Step 5: Solve for x
   x = 10,040,172,459.89/154,212.12
6. Step 6: Final answer
   x = 65,106.25